Paper-feeding mechanism for typewriting machines



L. JENSEN. PAPER FEEDING MECHANISM FOR TYPEWRITING MACHINES.

APPL ATION FILED IUNE 3,1921. 1 4363980 Patented; Nov. 211, 1922 3 SHEETS-SHLET I.

L. JENSEN. PAPER FEEDING MECHANISM FOR TYPEWRITING MACHINEYS.

APPLICATION FILED JUNE 3,1921. 1,436,398.

Patented Nov. 21, 1922.

3 SHEETS-SHEET 2.

n, E IT.

L. JENSEN.

PAPER FEEDING MECHANISM FOR TYPEWRITING MACHINES. APPLICATION FILED JUNE 3,192|.

1 436 398, Patented Nov. 21, 1922, i

3 SHEEI'S SHhET 3.

. 35 away, of the mechanism shown in Patented Nov. 21, 1922.

UNETED STATES LOUIS JENSEN, OF CHICAGO, ILLINOIS, ASSIGNOR TO UNITED AUTOGRAPHIC REGISTER (30., OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

PAPER-FEEDING MECHANISM FOR TYPEWRITING MACHINES.

Application filed June 3, 1921. Serial No. 474,629.

To all whom. it may concern:

Be it known that I, LOUIS JENSEN, a citizen of the United States of America, and a resident of Chicago. county of Cook. and

State of Illinois, have invented certain new and useful Improvements in Paper-Feeding Mechanism for Typewriting Machines.0f

which the following is a specification.

This invention relates to paper feeding mechanism for typewriting machines having provision for supporting a. plurality of paper record strips. The object of the invention is to provide improved mechanism for maintaining proper registration between the 5 strips. These may have been provided with printed forms intended to be filled out with the typewriter which, at the location of each form, are provided with a pair of perforations for receiving posts of filing devices.

It is also the purpose of the invention to provide paper feeding mechanism including line-spacing mechanism in connection with improved means for effecting a greater feed of the paper. The paper feeding device is arranged to engage the strips of paper at the locations of the perforations therein.

The objects of the invention are accomplished by the device .shown in the ,accompanying drawings, in which Fig. 1 shows the improvements in side elevation and mounted upon the carrier of a typewriting machine which is partly broken away.

Fig. 2 is a front elevation. partly broken Fig. 3 is a side view of a fragment of mechanism forming a part of the extracting device.

Fig. 4 is a detail showing the paper feeding device in its lowest position.

Fig. 5 is a detail showing the feeding device in raised position.

The general arrangement of the design shown in the drawings consists of a typewriting machine of standard construction in so far as the key action is concerned but provided with a carriage preferably having a non-rotatable platen. The carriage is movable laterally as usual by a step-b v-step motion effected by the depression of keys and supports a plurality of rolls of paper record strips and a feeding mechanism by which predetermined lengths of the strips may be fed past the platen. and also a novel linespacing mechanism for moving the strips step-by-step the distances between lines. The means for feeding the paper record strips consists of a device which reciprocates vertically toward and away from the platen and is also movable horizontally toward and away from the paper in order to properly engage the same at the points of perforations therein. This method of feeding the paper insures the maintenance of the desired registration between the record strips by correcting any tendency of one strip to move out of registration with another. The feeding device includes a flexible band traveling in an arcuate path about a fixed center.

Referring to the drawings. the frame 1 of the typewriting machine is shown provided with tracks 2 for guiding the platen carriage 3 across the machine during the lateral movements which are imparted to it through actuation of the type bars 4. The frame 1 carries a pair of curved guides for the paper feeding device 6. The guides 5 also serve as a support for a spindle 7 which is journaled in cross-arms 8 connecting opposite sides of each guide. The spindle 7 carries a ratchet wheel 9 to which the feeding device 6 is secured by the flex ble band 10. The ratchet wheel 9 may be rotated forwardly or backwurdly by means of the knurled head 11 secured to the end of spindle 7. In its rotary movement it serves to reciprocate the feeding device 6 in a vertical direction toward and away from the paper guide 12 located above the platen 13. The feeding device 6 travels along the vertical portions 14 and more or less around the up per curved part of the guides.

When the paper record strips are fed out of the machine by rotating the knurled head 11 the feeding device 6 draws upwardly upon the strips at the points of the perforations and travels around the guides 5 until another pair of perforations in the webs arrives at the location of slots 37 in guide 12.

Then after the portions of the paper written upon are severed from the strips along knife edge 16, a reverse motion of the knurled head 11 causes the feeding device to travel downwardly along guides As the feeding device arrives near its lowermost position it first moves rearward as it passes the upper edge of the paper and then forward into the perforations in the paper located-at the slots 37 in the paper guide 12. Springs 15 depending from a cross-bar 33 connecting the guides 5. serve to propel the feeding device forwardly into engagement with paper at its perforations after the said device is forced rearwardly by the inclined lips 38- on the inner surfaces of guides 5. Cross-bar 33 also carries a resilient retaining roller 34 for coacting with the teeth of ratchet wheel 9. The tearing blade 16 may be rocked out of operative position by means of knob 39.

The line-spacing mechanism includes a pawl 17 carried by an arm 18 journaled on spindle 7. The pawl is adapted to engage ratchet wheel 9 and through it draw upwardly upon the resilient supporting members 10 for the feeding device 6. Arm 18 is oscillated for the purpose of actuating the pawl by means of a bell crank lever 19 having a suitable handle 20 and which is pivoted to the frame of the machine at 21. The inner arm 22 of the bell crank lever has a link connection 23 with a lever 24, on a shaft carrying an arm 35, the upper end of which arm has a slotted engagement with a pin 25 projecting from arm 18. The distance between lines is determined by an adjustable guide 26 for pawl 17, a pin on the pawl being suitably located to engage the outer end of the guide 26. This guide is adjustable to different fixed positions on the curved bracket 27.

The paper webs 28 are supported in the frame 3 by spindles for the paper rolls (not shown) and from these rolls pass over guides 29 and 30 past the platen 13 and through guide 12.

The mechanism as shown in the drawings,

is in condition for the writing operation. After one line has been written. as usual in typewriting machines. the handle 20 is operated to effect a desired line spacing and the following line is then written. After the desired matter has been printed upon a form occupying a predetermined portion of the webs, the webs are fed the remainder of the distance required to bring another pair of perforationsinto the location of the slots 37 in guide 12, either by means of the knurled head 11 or manipulation of the bell crank lever 19. \Vhenever ratchet 9 is rotated by either of these two agencies the feeding device 6 is drawn upwardly drawing the paper webs up with it by engaging perforatious thereof. If a considerable feed is imparted to the paper by means of knurled head 11, an arm 31 fast to spindle T engages a spring 32 projecting from pawl 17, holding the pawl out of engagement with the ratchetwheel so that rotation of the wheel may be reversed irrespective of the position of hell crank lever 19. Upon reverse rotation of the wheel, which is preferably effected after the printed portions of the webs are removed, the feeding device 6 travels downwardly as guided by the members 15, first away from the web and then toward the same when the pins 36 arrive opposite perforations in the web.

Although but one specific embodiment of this invention has been herein shown and described, it will be understood that numerous details of the construction shown may be altered or omitted without departing from the spirit of this invention as defined by the following claims.

I claim:

1. In a feeding device for typewriting machines, a frame, a laterally movable carriage mounted on said frame, a non-rotatable platen onsaid carriage, a paper extracting mechanism comprising a reciprocal resiliently mounted member having pins for engaging a paper web at the location of perforations therein. and guiding devices for causing the extractor pins to enter perforations in the web.

2. In a feeding device for typewriting machines, a frame, a laterally movable carriage mounted on said frame, a platen on said carriage, a paper extracting mechanism mopnted on the carriage and comprising a pair of curved guides and a paper extractor movable along said guides, rotatable means supported by said guides for reciprocating said extractor, and means for causing said extractor to engage the paper at perforations therein.

3. In a feeding device for typewriting machines, a frame, a laterally movable carriage mounted on said frame. a platen on said.

carriage, a paper extracting mechanism comprising a pair of curved guides and a paper extractor movable along said guides, a ratchet wheel journaled between said guides, means for rotating said ratchet wheel, and a resilient connection between said wheel and the extractor.

4. In a feeding device for typewriting ma chines, a frame. a paper carriage mounted on said frame, a platen on said carriage, a laterally vibratory paper extractor. and means for moving said extractor in an arcuate path. I

5. In a feeding device for typewriting machines, a frame, a paper carriage mounted on said frame, a platen on said carriage, a

laterally vibratory paper extractor provided with pins for engaging the paper at post holes therein, and means for moving said extractor in an arcuate path.

6. In a feeding device for typewriting ma llt chines, a frame, a paper carriage mounted said pins at the commencement of the exon said frame, a platen on said carriage, a tractinggmovement.

laterally vibratory paper extractor provided In witness whereof I have hereunto set my with pins for engaging the paper at post hand this Tth (la of May, 1921.

holes therein means for moving said ex- LOUIS JENSEN. tractor in an arcuate path. and stationary guide plates between which the paper is withdrawn and which are intercepted by \Yitnesses:

V. R. BARKER, LOUIS BARKER. 

